NEIDSpecMatch: stellar parameter estimation with NEID spectra using an empirical library

Te Han; Paul Robertson; Caleb I. Cañas; Gudmundur Stefansson; Shubham Kanodia; Joe P. Ninan; Jaime A. Alvarado-Montes; Chad F. Bender; Jiayin Dong; Rachel Fernandes; Arvind F. Gupta; Samuel Halverson; Daniel M. Krolikowski; Andrea S. J. Lin; Suvrath Mahadevan; Leonardo A. Paredes; Arpita Roy; Christian Schwab; Ryan C. Terrien

doi:10.3847/2515-5172/adc264

NEIDSpecMatch: stellar parameter estimation with NEID spectra using an empirical library

Te Han, Paul Robertson, Caleb I. Cañas, Gudmundur Stefansson, Shubham Kanodia, Joe P. Ninan, Jaime A. Alvarado-Montes, Chad F. Bender, Jiayin Dong, Rachel Fernandes, Arvind F. Gupta, Samuel Halverson, Daniel M. Krolikowski, Andrea S. J. Lin, Suvrath Mahadevan, Leonardo A. Paredes, Arpita Roy, Christian Schwab, Ryan C. Terrien

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Abstract

We introduce NEIDSpecMatch, a tool developed to extract stellar parameters from spectra obtained with the NEID spectrograph. NEIDSpecMatch is based on SpecMatch-Emp and HPFSpecMatch, which estimate stellar parameters by comparing the observed spectrum to well-characterized library spectra. This approach has proven effective for M dwarfs. Utilizing a library of 78 stellar spectra covering effective temperatures from 3000–6000 K, NEIDSpecMatch derives key parameters, including effective temperature, metallicity, surface gravity, and projected rotational velocity. Cross-validation shows median uncertainties ofσ_Teff = 115K, σ_[Fe/H] = 0.143, and σ_logg= 0.073 across 49 orders. We showcase its application by fitting the spectrum of an M-dwarf and discuss its utility across a wide range of spectra observed with NEID. NEIDSpecMatch is pip-installable.

Original language	English
Article number	63
Pages (from-to)	1-4
Number of pages	4
Journal	Research Notes of the AAS
Volume	9
Issue number	3
DOIs	https://doi.org/10.3847/2515-5172/adc264
Publication status	Published - Mar 2025

Bibliographical note

© 2025 The Author(s). Published by the American Astronomical Society. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

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10.3847/2515-5172/adc264Licence: CC BY

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Cite this

Han, T., Robertson, P., Cañas, C. I., Stefansson, G., Kanodia, S., Ninan, J. P., Alvarado-Montes, J. A., Bender, C. F., Dong, J., Fernandes, R., Gupta, A. F., Halverson, S., Krolikowski, D. M., Lin, A. S. J., Mahadevan, S., Paredes, L. A., Roy, A., Schwab, C., & Terrien, R. C. (2025). NEIDSpecMatch: stellar parameter estimation with NEID spectra using an empirical library. Research Notes of the AAS, 9(3), 1-4. Article 63. https://doi.org/10.3847/2515-5172/adc264

@article{1e60659075cb47e6aa183faa2599eaea,

title = "NEIDSpecMatch: stellar parameter estimation with NEID spectra using an empirical library",

abstract = "We introduce NEIDSpecMatch, a tool developed to extract stellar parameters from spectra obtained with the NEID spectrograph. NEIDSpecMatch is based on SpecMatch-Emp and HPFSpecMatch, which estimate stellar parameters by comparing the observed spectrum to well-characterized library spectra. This approach has proven effective for M dwarfs. Utilizing a library of 78 stellar spectra covering effective temperatures from 3000–6000 K, NEIDSpecMatch derives key parameters, including effective temperature, metallicity, surface gravity, and projected rotational velocity. Cross-validation shows median uncertainties ofσTeff = 115K, σ[Fe/H] = 0.143, and σlogg= 0.073 across 49 orders. We showcase its application by fitting the spectrum of an M-dwarf and discuss its utility across a wide range of spectra observed with NEID. NEIDSpecMatch is pip-installable.",

author = "Te Han and Paul Robertson and Ca{\~n}as, {Caleb I.} and Gudmundur Stefansson and Shubham Kanodia and Ninan, {Joe P.} and Alvarado-Montes, {Jaime A.} and Bender, {Chad F.} and Jiayin Dong and Rachel Fernandes and Gupta, {Arvind F.} and Samuel Halverson and Krolikowski, {Daniel M.} and Lin, {Andrea S. J.} and Suvrath Mahadevan and Paredes, {Leonardo A.} and Arpita Roy and Christian Schwab and Terrien, {Ryan C.}",

note = "{\textcopyright} 2025 The Author(s). Published by the American Astronomical Society. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher. ",

year = "2025",

month = mar,

doi = "10.3847/2515-5172/adc264",

language = "English",

volume = "9",

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journal = "Research Notes of the AAS",

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Han, T, Robertson, P, Cañas, CI, Stefansson, G, Kanodia, S, Ninan, JP, Alvarado-Montes, JA, Bender, CF, Dong, J, Fernandes, R, Gupta, AF, Halverson, S, Krolikowski, DM, Lin, ASJ, Mahadevan, S, Paredes, LA, Roy, A, Schwab, C & Terrien, RC 2025, 'NEIDSpecMatch: stellar parameter estimation with NEID spectra using an empirical library', Research Notes of the AAS, vol. 9, no. 3, 63, pp. 1-4. https://doi.org/10.3847/2515-5172/adc264

TY - JOUR

T1 - NEIDSpecMatch

T2 - stellar parameter estimation with NEID spectra using an empirical library

AU - Han, Te

AU - Robertson, Paul

AU - Cañas, Caleb I.

AU - Stefansson, Gudmundur

AU - Kanodia, Shubham

AU - Ninan, Joe P.

AU - Alvarado-Montes, Jaime A.

AU - Bender, Chad F.

AU - Dong, Jiayin

AU - Fernandes, Rachel

AU - Gupta, Arvind F.

AU - Halverson, Samuel

AU - Krolikowski, Daniel M.

AU - Lin, Andrea S. J.

AU - Mahadevan, Suvrath

AU - Paredes, Leonardo A.

AU - Roy, Arpita

AU - Schwab, Christian

AU - Terrien, Ryan C.

N1 - © 2025 The Author(s). Published by the American Astronomical Society. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

PY - 2025/3

Y1 - 2025/3

N2 - We introduce NEIDSpecMatch, a tool developed to extract stellar parameters from spectra obtained with the NEID spectrograph. NEIDSpecMatch is based on SpecMatch-Emp and HPFSpecMatch, which estimate stellar parameters by comparing the observed spectrum to well-characterized library spectra. This approach has proven effective for M dwarfs. Utilizing a library of 78 stellar spectra covering effective temperatures from 3000–6000 K, NEIDSpecMatch derives key parameters, including effective temperature, metallicity, surface gravity, and projected rotational velocity. Cross-validation shows median uncertainties ofσTeff = 115K, σ[Fe/H] = 0.143, and σlogg= 0.073 across 49 orders. We showcase its application by fitting the spectrum of an M-dwarf and discuss its utility across a wide range of spectra observed with NEID. NEIDSpecMatch is pip-installable.

AB - We introduce NEIDSpecMatch, a tool developed to extract stellar parameters from spectra obtained with the NEID spectrograph. NEIDSpecMatch is based on SpecMatch-Emp and HPFSpecMatch, which estimate stellar parameters by comparing the observed spectrum to well-characterized library spectra. This approach has proven effective for M dwarfs. Utilizing a library of 78 stellar spectra covering effective temperatures from 3000–6000 K, NEIDSpecMatch derives key parameters, including effective temperature, metallicity, surface gravity, and projected rotational velocity. Cross-validation shows median uncertainties ofσTeff = 115K, σ[Fe/H] = 0.143, and σlogg= 0.073 across 49 orders. We showcase its application by fitting the spectrum of an M-dwarf and discuss its utility across a wide range of spectra observed with NEID. NEIDSpecMatch is pip-installable.

U2 - 10.3847/2515-5172/adc264

DO - 10.3847/2515-5172/adc264

M3 - Article

SN - 2515-5172

VL - 9

SP - 1

EP - 4

JO - Research Notes of the AAS

JF - Research Notes of the AAS

IS - 3

M1 - 63

ER -